1353515450523 has 4 divisors (see below), whose sum is σ = 1804687267368. Its totient is φ = 902343633680.

The previous prime is 1353515450509. The next prime is 1353515450533. The reversal of 1353515450523 is 3250545153531.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1353515450523 - 2⁶ = 1353515450459 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1353515450533) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 225585908418 + ... + 225585908423.

It is an arithmetic number, because the mean of its divisors is an integer number (451171816842).

Almost surely, 2^{1353515450523} is an apocalyptic number.

1353515450523 is a deficient number, since it is larger than the sum of its proper divisors (451171816845).

1353515450523 is an equidigital number, since it uses as much as digits as its factorization.

1353515450523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 451171816844.

The product of its (nonzero) digits is 675000, while the sum is 42.

The spelling of 1353515450523 in words is "one trillion, three hundred fifty-three billion, five hundred fifteen million, four hundred fifty thousand, five hundred twenty-three".